CN107986270A - A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material - Google Patents
A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material Download PDFInfo
- Publication number
- CN107986270A CN107986270A CN201711445964.7A CN201711445964A CN107986270A CN 107986270 A CN107986270 A CN 107986270A CN 201711445964 A CN201711445964 A CN 201711445964A CN 107986270 A CN107986270 A CN 107986270A
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- China
- Prior art keywords
- coiled material
- gauge
- graphite film
- film coiled
- graphite
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- 239000000463 material Substances 0.000 title claims abstract description 124
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 239000010439 graphite Substances 0.000 title claims abstract description 83
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000004804 winding Methods 0.000 claims abstract description 47
- 238000003763 carbonization Methods 0.000 claims abstract description 20
- 238000005087 graphitization Methods 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 238000003490 calendering Methods 0.000 claims description 10
- 238000005255 carburizing Methods 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 2
- 208000036829 Device dislocation Diseases 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 3
- 239000000945 filler Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000571 coke Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 208000018999 crinkle Diseases 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 208000012802 recumbency Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H18/00—Winding webs
- B65H18/02—Supporting web roll
- B65H18/028—Both ends type
Abstract
The present invention relates to graphite film coiled material technical field, and particularly a kind of graphite film coiled material gauge, the gauge are platypelloid type gauge, and the gauge, which has, is used for two winding ends for winding PI films, wherein at least one winding end retractable.The object of the present invention is to provide a kind of graphite film coiled material gauge, no longer needs to be mingled with the material beyond PI among coiled material when being wound PI, coiling one-step shaping, improves PI coiling efficiency；And the gauge is a kind of graphite gauge for possessing retractable core, it ensure that the coiled material close to core is not pulled off, coiled material yield higher；The graphite film coiled material gauge is graphite gauge, and during PI Carbonization contracts, coiled material relies closely with high heat conduction graphite film coiled material gauge all the time, ensure that the uniformity that coiled material is heated from inside to outside.
Description
Technical field
The present invention relates to graphite film coiled material technical field, particularly a kind of graphite film coiled material gauge and graphite film coiled material
Production technology.
Background technology
PI coiled materials are during graphite coiled material is transformed into, to reach the level suitable with sheet quality（Film surface exquisiteness,
It is smooth, without breakage）, technically to reach coiled material and be heated evenly, shrink the problem of consistent and coke discharging is unimpeded, generally use at present
Technological means be in PI coiling section by circular tube filler coiling, then among plus the mode such as PET, metal strip or graphite paper row is set
Degree of being heated evenly is improved in burnt space.Which realizes PI coiled materials and turns to general quality graphite coiled material to a certain extent
Become.
It is existing the process of graphite film coiled material to be prepared by PI coiled materials there are following defect：1st, PI turns to graphite film
Variable area can shrink 20%-30%.Circular tube filler is involved in into carbide furnace around complete, during PI Carbonization contracts, close to the coiled material of tube filler
Can be increasing with the pressure between barrel, hard tube filler cannot give PI and shrink cushion space, when pressure is born more than material
During intensity, the coiled material close to core can a large amount of damaged or fracture；2nd, PI coiling mode is too cumbersome, while using PET, metal strip etc.
Mode artificially sets the gap between PI uneven, can cause the coiled material contraction that coiled material is heated during being carbonized and coke discharging is uneven, obtains
Form differs, and then influences the degree of being heated evenly during graphitization, and uneven heating can cause that graphite film coiled material form is inconsistent, film
Face out-of-flatness, eventually affects calendering efficiency and calendering quality；3rd, using circular tube filler coiling, set in a manner of PET, metal strip etc.
Gap is put, this gap is generally all excessive, cannot be tightened naturally after carbonization, and for coiled material graphitization, inside coiled material
Heat transfer is uneven, and discharge poor quality.
The content of the invention
The object of the present invention is to provide a kind of graphite film coiled material gauge, no longer needed when being wound to PI in coiled material
Between be mingled with material beyond PI, coiling one-step shaping, improves PI coiling efficiency；And the gauge is that one kind possesses and can freely stretch
The graphite gauge of crinkle core, ensure that the coiled material close to core is not pulled off, coiled material yield higher；The graphite film coiled material gauge is
Graphite gauge, during PI Carbonization contracts, coiled material relies closely with high heat conduction graphite film coiled material gauge all the time, ensure that volume
The uniformity that material is heated from inside to outside.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of graphite film coiled material gauge, the gauge are platypelloid type gauge, and the gauge, which has, is used for two volumes for winding PI films
Around end, wherein at least one winding end retractable.
Specifically, above-mentioned two winding end can freely stretch.
Specifically, above-mentioned gauge includes the winding end of jig body and retractable, the winding of the retractable
Hold as T-shaped winding end, including crosspiece and the perpendicular section that is vertically fixed in the middle part of crosspiece, the jig body, which is equipped with, is easy to T-shaped volume
The receiving hole that perpendicular section around end is freely stretched.
Specifically, above-mentioned jig body is flat square.
Specifically, moved when above-mentioned gauge is additionally included in winding PI films, for restricted T type winding end relative to jig body
Limiting device.
Specifically, above-mentioned limiting device is limited block, when winding PI films, limited block be located at crosspiece and jig body it
Between.
Specifically, above-mentioned limiting device is spacer pin, has jig body limit hole, the perpendicular section in the jig body
Perpendicular section limit hole is equipped with, the spacer pin carries out T-shaped winding end position through jig body limit hole and perpendicular section limit hole
It is spacing.
A kind of technique using graphite film coiled material gauge production graphite film coiled material, includes the following steps：
1) carrier centered on graphite film coiled material gauge, coiled material is coiled into by PI films on graphite film coiled material gauge；
2) by step 1）The coiled material and graphite film coiled material gauge being coiled into are sent into carbide furnace and are carbonized, and are controlled described in carbonisation
Tool is horizontal；
3) by step 2）Coiled material and graphite film coiled material gauge after carbonization, which are sent into graphitizing furnace, carries out graphitization, graphitization mistake
Gauge is horizontal positioned described in journey；
4) uncoiling rewinding；
5) calendering process.
Specifically, the carbonisation of above-mentioned steps 2, specific is that carburizing temperature is 500~1400 DEG C, carbonization time 12
~24 it is small when, vacuum environment is 10~10000Pa in carbide furnace.
Specifically, the graphitizing process of above-mentioned steps 3, specific is that graphitization temperature is 2400~3300 DEG C, the time 4
~12 it is small when, the environment of inert gas shielding in graphitizing furnace.
The beneficial effects of the invention are as follows：（1）A kind of graphite film coiled material gauge provided by the invention, when being wound to PI
No longer need to be mingled with the material beyond PI among coiled material, coiling one-step shaping, improves PI coiling efficiency；
（2）In the transition process of PI to graphite film, the contraction of 20%-30%, a kind of graphite provided by the invention can occur for coiled material
Film coiled material gauge is a kind of graphite gauge for possessing retractable core, ensure that the coiled material close to core is not pulled off, and is rolled up
Material yield higher；
（3）A kind of graphite film coiled material gauge provided by the invention, no longer needs to be mingled among coiled material when being wound PI
Material beyond PI, during PI Carbonization contracts, coiled material relies closely with high heat conduction graphite film coiled material gauge all the time, ensures
The uniformity that coiled material is heated from inside to outside, the graphite film flatness finally come out of the stove is fine, not easy to break, rolling velocity during calendering
More than 8m/min can be reached；Because PI shrink can inside the coiled material between produce certain extruding force, this extruding force is conducive to
Coiled material is heated and internal crystallite is orientated along graphite film film surface direction, is conducive to the raising of direction thermal diffusion coefficient, thermal diffusion
Coefficient normally can generally reach 900mm2/ more than s；
（4）In the transition process of PI to graphite film, it can naturally be tightened after the carbonization of PI coiled materials, be conducive to coiled material under graphitizable high temperature
Interior layer and interlayer thermally equivalent, coiled material quality is more preferable after graphitization.
（5）A kind of graphite film coiled material gauge provided by the invention, overall be in platypelloid type, effectively prevent due to carbide furnace with
The uneven heating of PI coiled materials caused by the temperature difference of the levels part of graphitizing furnace, ensure that the good product of coiled material after graphitization
Matter；The gauge of flat can ensure to locally lie between PI not produce before carbonization between gap or PI in PI coiling
Extruding force, the convenient coke discharging that is carbonized；At the same time sidewards（Recumbency）Placement can ensure that gauge locus is more stable, be heated evenly, go out
Item matter is good, and coiled material wide cut can do more.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of graphite film coiled material gauge of the present invention；
Fig. 2 is a kind of decomposition texture schematic diagram of graphite film coiled material gauge of the present invention；
Fig. 3 is the structure diagram of the graphite film coiled material gauge with spacer pin；
Fig. 4 is the structure diagram of the graphite film coiled material gauge with limited block；
In figure：1. end is wound, 2. jig bodies, 11. crosspieces, 12. perpendicular sections, 21. receiving holes, 3. limited blocks, 4. spacer pins, 5.
Jig body limit hole, 6. perpendicular section limit holes.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
A kind of graphite film coiled material gauge, gauge are platypelloid type graphite gauge, and gauge, which has, is used for two volumes for winding PI films
Around end 1, wherein at least one winding 1 retractable of end.
In a kind of embodiment, two winding ends 1 can freely stretch.
In a kind of embodiment, gauge includes the winding end 1 of jig body 2 and retractable, can freely stretch
The winding end 1 of contracting is T-shaped winding end 1, including crosspiece 11 and the perpendicular section 12 for being vertically fixed on the middle part of crosspiece 11, in jig body 2
The receiving hole 21 freely stretched equipped with the perpendicular section 12 easy to T-shaped winding end 1.
In a kind of embodiment, jig body 2 is flat square.
In a kind of embodiment, gauge be additionally included in winding PI films when, for restricted T type winding end 1 relative to
The limiting device that jig body 2 is moved.
In a kind of embodiment, limiting device is limited block 3, and when winding PI films, limited block 3 is located at crosspiece 11
Between jig body 2.
In a kind of embodiment, limiting device is spacer pin 4, has jig body limit hole in jig body 2
5, erect section 12 and be equipped with perpendicular section limit hole 6, spacer pin 4 is through jig body limit hole 5 and perpendicular section limit hole 6 to T-shaped winding end 1
Position carries out spacing.
A kind of technique using graphite film coiled material gauge production graphite film coiled material, includes the following steps：
1) carrier centered on graphite film coiled material gauge, coiled material is coiled into by PI films on graphite film coiled material gauge；
2) by step 1）The coiled material and graphite film coiled material gauge being coiled into are sent into carbide furnace and are carbonized, and are controlled described in carbonisation
Have horizontal positioned；Carburizing temperature is 500~1400 DEG C, carbonization time for 12~24 it is small when, in carbide furnace vacuum environment for 10~
10000Pa；
3) by step 2）Coiled material and graphite film coiled material gauge after carbonization, which are sent into graphitizing furnace, carries out graphitization, graphitization mistake
Gauge is horizontal positioned described in journey；Graphitization temperature is 2400~3300 DEG C, when the time is 4~12 small, inertia in graphitizing furnace
The environment of gas shield.
4) uncoiling rewinding；
5) calendering process.
Embodiment 1
A kind of graphite film coiled material gauge, gauge are flat square graphite gauge, and gauge, which has, is used for two windings for winding PI films
End 1, two of which winding end 1 can freely stretch, and gauge includes the winding end 1 of jig body 2 and retractable, can be certainly
By flexible winding end 1 end 1, including crosspiece 11 and the perpendicular section 12 for being vertically fixed on the middle part of crosspiece 11, jig body are wound to be T-shaped
2 are equipped with easy to the receiving holes 21 freely stretched of perpendicular section 12 at T-shaped winding end 1, when gauge is additionally included in winding PI films, for limiting
The spacer pin 4 that T-shaped winding end 1 is moved relative to jig body 2 is made, there is jig body limit hole 5 in jig body 2, erect section
12 are equipped with perpendicular section limit hole 6, spacer pin 4 through jig body limit hole 5 and perpendicular section limit hole 6 to T-shaped winding 1 position of end into
Row is spacing.
A kind of technique using graphite film coiled material gauge production graphite film coiled material, includes the following steps：
1) carrier centered on graphite film coiled material gauge, is coiled into coiled material, by spacer pin 4 by PI films on graphite film coiled material gauge
Take out；
2) by step 1）The coiled material and graphite film coiled material gauge being coiled into are sent into carbide furnace and are carbonized, and are controlled described in carbonisation
Tool is horizontal；
3) by step 2）Coiled material and graphite film coiled material gauge after carbonization, which are sent into graphitizing furnace, carries out graphitization, graphitization mistake
Gauge is horizontal positioned described in journey；
4) uncoiling rewinding；
5) calendering process.
Comparative example 1
With embodiment 1, difference is, after the completion of winding, gauge is removed for other, is carbonized and graphitization.
Coiled material cracks contraction phase stress and heated all uneven, the graphite film flatness finally come out of the stove in high temperature cabonization PI
Very poor, easy fracture during calendering, rolling velocity can only achieve 3-4m/min；Supported because PI shrinks inside without object, inside coiled material
The power mutually extruded is hardly produced, is unfavorable for the raising of direction thermal diffusion coefficient, thermal diffusion coefficient normally generally can only
Reach 800mm2/ s or so.
Comparative example 2
, with embodiment 1, difference is, after the completion of winding, retains spacer pin, prevents T-shaped winding end 1 from freely moving for other
It is dynamic.
The even more fractures of 2-3 meters of generation and breakage are pulled off in carbonized graphite not close to the coiled material of telescopic jig
It is good.
Comparative example 3
, with comparative example 1, difference is, PI is wound by the way of PET, metal strip for other.
Conventional PI coiling mode is too cumbersome, while artificially sets the gap between PI uneven using modes such as PET, metal strips
It is even, coiled material can be caused to be heated during being carbonized uneven with coke discharging, obtained coiled material retracted configuration differs, and then during influence graphitization
Degree of being heated evenly, uneven heating can cause that graphite film coiled material form is inconsistent, film surface out-of-flatness, eventually affect calendering efficiency
With calendering quality.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (10)
- A kind of 1. graphite film coiled material gauge, it is characterised in that：The gauge is platypelloid type graphite gauge, and the gauge, which has, to be used for Wind two winding ends of PI films, wherein at least one winding end retractable.
- A kind of 2. graphite film coiled material gauge according to claim 1, it is characterised in that：Described two winding ends can be with Freely stretch.
- A kind of 3. graphite film coiled material gauge according to claim 1 or 2, it is characterised in that：The gauge includes gauge The winding end of body and retractable, the winding end of the retractable are T-shaped winding end, including crosspiece and vertical fixed Perpendicular section in the middle part of crosspiece, the jig body are equipped with the receiving hole freely stretched easy to the perpendicular section at T-shaped winding end.
- A kind of 4. graphite film coiled material gauge according to claim 3, it is characterised in that：The jig body is flat side Shape.
- A kind of 5. graphite film coiled material gauge according to claim 3, it is characterised in that：The gauge is additionally included in winding The limiting device moved during PI films, for restricted T type winding end relative to jig body.
- A kind of 6. graphite film coiled material gauge according to claim 4, it is characterised in that：The limiting device is limited block, When winding PI films, limited block is between crosspiece and jig body.
- A kind of 7. graphite film coiled material gauge according to claim 4, it is characterised in that：The limiting device is spacer pin, There is jig body limit hole, the perpendicular section is equipped with perpendicular section limit hole, and the spacer pin passes through gauge in the jig body Body limit hole and perpendicular section limit hole carry out T-shaped winding end position spacing.
- 8. a kind of technique using graphite film coiled material gauge production graphite film coiled material, it is characterised in that include the following steps：1) carrier centered on graphite film coiled material gauge, coiled material is coiled into by PI films on graphite film coiled material gauge；2) by step 1）The coiled material and graphite film coiled material gauge being coiled into are sent into carbide furnace and are carbonized, and are controlled described in carbonisation Have horizontal positioned；3) by step 2）Coiled material and graphite film coiled material gauge after carbonization, which are sent into graphitizing furnace, carries out graphitization, graphitization mistake Gauge is horizontal positioned described in journey；4) uncoiling rewinding；5) calendering process.
- 9. a kind of technique using graphite film coiled material gauge production graphite film coiled material according to claim 8, its feature exist In:The carbonisation of step 2, specific is that carburizing temperature is 500~1400 DEG C, when carbonization time is 12~24 small, carbide furnace Interior vacuum environment is 10~10000Pa.
- 10. a kind of technique using graphite film coiled material gauge production graphite film coiled material according to claim 8, its feature exist In：The graphitizing process of step 3, specific is that graphitization temperature is 2400~3300 DEG C, when the time is 4~12 small, graphitization The environment of inert gas shielding in stove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445964.7A CN107986270A (en) | 2017-12-27 | 2017-12-27 | A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711445964.7A CN107986270A (en) | 2017-12-27 | 2017-12-27 | A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material |
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| Publication Number | Publication Date |
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| CN107986270A true CN107986270A (en) | 2018-05-04 |
Family
ID=62042031
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|---|---|---|---|
| CN201711445964.7A Pending CN107986270A (en) | 2017-12-27 | 2017-12-27 | A kind of graphite film coiled material gauge and the technique using its production graphite film coiled material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108751185A (en) * | 2018-08-21 | 2018-11-06 | 北京中石伟业科技股份有限公司 | A kind of conductive graphite film coiled material smelting tool and carbide furnace |
| CN109095464A (en) * | 2018-10-30 | 2018-12-28 | 上海弘枫实业有限公司 | A kind of production technology for producing jig and graphite film coiled material of graphite film coiled material |
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| CN207845165U (en) * | 2017-12-27 | 2018-09-11 | 碳元科技股份有限公司 | A kind of graphite film coiled material jig |
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2017
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| CN1085872A (en) * | 1992-07-21 | 1994-04-27 | 贝克特股份有限公司 | The method of twining |
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| CN109095464B (en) * | 2018-10-30 | 2023-08-18 | 上海弘枫实业有限公司 | Production jig of graphite film coiled material and production process of graphite film coiled material |
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